Of course they do.
Since the Marvel Cinematic Universe has taken off in such a huge way everyone is trying to emulate that success. Sony is trying to milk as much out of the Spider-Man franchise as they possibly can whilst they still own the rights to the characters.

My wife asked me exactly the same question.
Out of the comic book based TV shows that are on at the moment (and there seems to be dozens) this is my favourite right now. It is so much fun and Grant Gustin is perfect as Barry Allen.

I don't think his bisexuality is a defining characteristic, so I won't be bothered if it is or isn't a part of the show. I don't know how much sex or talk of sex there's going to be in the show, but it would be a shame to not even acknowledge it in passing.
But as we've seen on this forum in the past there are bisexual and homosexual people that identify with John in some respects and this aspect of his character is particular important to them so the outcry doesn't surprise me in the least.

Nope. I am in May
Pretty sure it's me you're thinking of Christian as mine is early March.
I was first introduced to Hellblazer late 1993 or early 1994 by a university friend who loaned me his copy of Original Sins and I loved it, he then gave me a few more Delano issues to read until I got to the point where I just needed to start buying it for myself.

Fuck this shit.
I don't care about most of the DCU but if they reboot Batman and get rid of Damian and demote and de-age Dick to Robin etc. I think that would be a massive shame. I think Morrison has done some fantastic stuff with Batman over the past five years and also seeing what other writers have come up with the characters in the new status quo that he's given them.